From: Rik van Riel <riel@conectiva.com.br>
To: "David S. Miller" <davem@redhat.com>
Cc: Linus Torvalds <torvalds@transmeta.com>,
linux-mm@kvack.org, "Stephen C. Tweedie" <sct@redhat.com>,
Matthew Dillon <dillon@apollo.backplane.com>
Subject: Re: [RFC] 2-pointer PTE chaining idea
Date: Sat, 20 Jan 2001 18:05:12 +1100 (EST) [thread overview]
Message-ID: <Pine.LNX.4.31.0101201802080.1071-100000@localhost.localdomain> (raw)
In-Reply-To: <14953.8856.982405.328564@pizda.ninka.net>
On Fri, 19 Jan 2001, David S. Miller wrote:
> Linus Torvalds writes:
> > - DO NOT WASTE TIME IF YOU HAVE MEMORY!
[snip]
> > This, btw, also implies: don't make the page tables more complex.
>
> I have to concur.
> Basically, that would leave us with the issue of choosing anonymous
> pages to tap out correctly. I see nothing that prevents our page
> table scanning from being fundamentally unable to do quite well in
> this area.
I agree with this. However, having more uniform page aging
could lead to better page replacement and this pte chaining
thing is something I'd still like to try. ;)
If it turns out to be a win (with no measurable losses) I
may even submit a patch, but if it turns out to be a loss
I'll just drop the idea...
regards,
Rik
--
Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...
http://www.surriel.com/
http://www.conectiva.com/ http://distro.conectiva.com.br/
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next prev parent reply other threads:[~2001-01-20 7:05 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-19 5:08 Rik van Riel
2001-01-19 6:57 ` David S. Miller
2001-01-19 7:17 ` Linus Torvalds
2001-01-19 7:55 ` Rik van Riel
2001-01-20 5:22 ` Linus Torvalds
2001-01-20 5:31 ` David S. Miller
2001-01-20 7:05 ` Rik van Riel [this message]
2001-01-19 11:49 ` Ingo Molnar
2001-01-20 6:58 ` Rik van Riel
2001-01-19 11:37 ` Ingo Molnar
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